Fabrication and Properties of 1-3 Polymer Modified Cement Based Piezoelectric Composites
A piezoelectric ceramic(lead niobium lithium zirconate titanate, P(LN)ZT), sulphoaluminate cement and polymer were used to fabricate polymer modified cement based piezoelectric composites by cut-filling technique. The influence of P(LN)ZT volume fraction on the electromechanical properties and acoustic impedance of composite was investigated. Comparing with P(LN)ZT Piezoelectric ceramic, the vibration at thickness mode of 1-3 type piezoelectric composite is strengthened, and the electromechanical quality factor is reduced. When P(LN)ZT volume fraction is 30.86%, the acoustic impedance value is 8.24 M rayl, which is close to that of the concrete (9.0 M rayl), and this is suitable for the non destructive inspection.
Shiquan Liu and Min Zuo
L. L. Guo et al., "Fabrication and Properties of 1-3 Polymer Modified Cement Based Piezoelectric Composites", Advanced Materials Research, Vols. 306-307, pp. 305-308, 2011